Geoege e



(ModeL) G. E. HART.

STEM WINDING WATCH.

,168. Patented Feb. @1884.

UNiTED STATES PATENT @rricir.

GEORGE E. HART, OF \VATERBURY, CONNECTICUT, ASSIGNOE. TO THE VATERBURY WATCH COMPANY, OF SAME PLACE.

STEM-WINDING WATCH.

SPECIFICATION forming part of Letters Patent No. 293,168, dated February 5, 1824..

Application filed July .21, 1853. thl'odcl.)

:0 all whom it may concern.-

Be it known that I, GEORGE E. HART, of YVaterbury, in the county of Eew Haven, and in the State of Connecticut, have invented certain new and useful Improvements in StemlVinding Attachments for lVatches; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a plan view of a watch-movement with the dial removed, having applied thereto my winding mechanism, said mechanism being shown in the position occupied while engaged with and rotating the barrelarbor. Fig. 2 is a like view of the same, with said winding mechanism thrown out of engagement with said barrel-arbor; and Fig. 3 is an enlarged plan view of the intermediate wheel and its pivoted stud separated from the other mechanism.

Letters of like name and kind refer to like parts in each of the figures.

The design of my invention is to simplify the construction of stenrwinding mechanism without impairing its efficiency, to which end said invention consists in a winding mechanism in which are combined the following elements, to wit: a toothed wheel attached to and adapted to rotate a barrel-arbor, a toothed wheel arranged to be rotated by a stem-journaled windingarbor, and an intermediate wheel which is loosely journaled upon an eocentric or flattened stud, isheld in constant engagement with said stem-rotated Wll6l,2il](l is adapted to automatically engage with said barrel-arbor wheel when rotated in one direction, and to automatically move out of engagement therewith when rotated in an oppo site direction, substantially as and for the purpose hereinafter specified.

In the annexed drawings, A'represents the pillar-plate of a watch-movement, which has any usual construction, and is provided with a stem-j ournaled arbor,B,that has secured to its inner portion, beneath said plate, a pinion, I), which rotates with said arbor.

J ournaled upon the outer face of the plate A is a toothed wheel, 0, which is engaged by the pinion b, that projects through. a suitable opening, a, provided in said plate, and may be rotated by means of the arbor B. A second smaller toothed wheel, D, is journaled upon a stud, (Z, which projects from the plate A, adjacent to the wheel 0, and is held in constant engagement therewith, but by the cutting away of one side of said stud is capa ble of a lateral movement thereon equal to the depth of its teeth. A toothed wheel, E, secured to the barrel-arbor F in position for engagement by the wheel 1), completes the mechanism, the operation of which is as follows, viz: \Vhen the wheel 0 is turned in the direction indicated by arrows in Fig. 1, the intermediate wheel, D, will be automatically moved toward and caused to engage with and rotate the wheel E, while by reversing the motion of said wheel 0 said intermediate wheel, D, will be automatically moved away from and out of engagement with said barrelarbor wheel, as seen in Fig. 2. The lateral movement necessary for the intermediate wheel, D, is secured by cutting away only from the side of the stud (1 adjacent to the wheel E,

by which means a sutticient bearing for said wheel D, while engaged in winding the main spring, is left, and the durability of parts not lessened.

By my construction no springs are required, the mechanism is reduced to the smallest practicable number of parts, and no liability exists to derangement or injury from use.

Having thus fully set forth the nature and merits of my invention, what I claim as new is A winding, mechanism in which are combined the following elements, to wit: a toothed wheel attached to and adapted to re tate a barrel-arbor, a toothed wheel arranged to be rotated by a stem-journaled windingarbor, and an intermediate wheel which is loosely journaled upon an eccentric or fiattened stud, is held in constant engagement with said stem-rotated wheel, and is adapted to automatically engage with said barrel-an bor wheel when rotated in one direction, and to automatically move out of engagement therewith when rotated in an opposite direction, substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 17th day of May, A. D. 1883.

GEORGE E. HART.

\Vitnesses GEo. E. TERRY, FRED L. TERRY.

IOO 

